<template>
  <div>
    <div style="padding: 10px 0">
      <el-input
        style="width: 200px"
        placeholder="请输入名称"
        suffix-icon="el-icon-search"
        v-model="name"
      ></el-input>
      <el-button class="ml-5" type="primary" @click="load">搜索</el-button>
      <el-button type="warning" @click="reset">重置</el-button>
    </div>
    <div style="margin: 10px 0">
      <el-upload
        style="display: inline-block"
        :action="$baseUrl+'/file/upload'"
        :show-file-list="false"
        :accept="'xlsx'"
        :on-success="handleFileUploadSuccess"
      >
        <el-button type="primary" class="ml-5"
          >上传文件<i class="el-icon-top"></i
        ></el-button>
      </el-upload>

      <el-popconfirm
        class="ml-5"
        confirm-button-text="确定"
        cancel-button-text="我再想想"
        icon="el-icon-info"
        icon-color="red"
        title="您确定删除吗？"
        @confirm="delBatch"
      >
        <el-button type="danger" slot="reference"
          >批量删除<i class="el-icon-remove-outline"></i
        ></el-button>
      </el-popconfirm>
    </div>

    <el-table
      :data="tableData"
      border
      stripe
      :header-cell-class-name="headerBg"
      @selection-change="handleSelectionChange"
    >
      <!-- @selection-change="handleSelectionChange"获取勾选的数据-->

      <el-table-column type="selection" width="55"></el-table-column>
      <el-table-column prop="id" label="id" width="80"></el-table-column>
      <el-table-column prop="name" label="文件名称"></el-table-column>
      <el-table-column prop="type" label="文件类型"></el-table-column>
      <el-table-column prop="size" label="文件大小(kb)"></el-table-column>

      <el-table-column label="预览">
        <template slot-scope="scope">
          <el-button type="primary" @click="preview(scope.row.url)">预览</el-button>
        </template>
      </el-table-column>

      <el-table-column label="下载">
        <template slot-scope="scope">
          <el-button type="primary" @click="download(scope.row.url)"
            >下载</el-button
          >
        </template>
      </el-table-column>

      <el-table-column label="启用">
        <template slot-scope="scope">
          <el-switch
            v-model="scope.row.enable"
            active-color="#13ce66"
            inactive-color="#ccc"
            @change="changeEnable(scope.row)"
          ></el-switch>
        </template>
      </el-table-column>

      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <el-popconfirm
            class="ml-5"
            confirm-button-text="确定"
            cancel-button-text="我再想想"
            icon="el-icon-info"
            icon-color="red"
            title="您确定删除吗？"
            @confirm="del(scope.row.id)"
          >
            <el-button type="danger" slot="reference">
              删除<i class="el-icon-remove-outline"></i
            ></el-button>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>

    <div style="padding: 10px 0">
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="pageNum"
        :page-sizes="[2, 5, 10, 20]"
        :page-size="pageSize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </div>
  </div>
</template>
<script>

export default {
  name: "File",
  data() {
    return {
      tableData: [],
      name: "",
      multipleSelection: [],
      headerBg: "headerBg",
      pageNum: 1,
      pageSize: 10,
      total: 0,
    };
  },

  created() {
    this.load();
  },

  methods: {
    load() {
      //加载2条数据
      this.request
        .get("/file/page", {
          params: {
            pageNum: this.pageNum,
            pageSize: this.pageSize,
            name: this.name,
          },
        })
        .then((res) => {
          console.log(res);
          this.tableData = res.data.records;
          this.total = res.data.total;
        });
    },

    changeEnable(row) {
      console.log("rowId",row)
      this.request.post("/file/update", row).then(res => {
        if (res.code === '200') {
          console.log('res',res)
          this.$message.success("操作成功,请前往前台视频播放页查看")
        }
      })
    },

    del(id) {
      this.request.delete("/file/" + id).then((res) => {
        if (res.code === "200") {
          this.$message.success("删除成功");
          this.load();
        } else {
          this.$message.error("删除失败");
        }
      });
    },
    handleSelectionChange(val) {
      // console.log(val)
      this.multipleSelection = val;
    },

    delBatch() {
      let ids = this.multipleSelection.map((v) => v.id); //[{},{},{}] => [1,2,3]
      console.log(ids);
      this.request.post("/file/del/batch/", ids).then((res) => {
        if (res.code === "200") {
          this.$message.success("批量删除成功");
          this.load();
        } else {
          this.$message.error("删除失败");
        }
      });
    },

    //重置
    reset() {
      this.name = "";
      this.load();
    },

    handleSizeChange(pageSize) {
      console.log(pageSize);
      this.pageSize = pageSize;
      this.load();
    },
    handleCurrentChange(pageNum) {
      console.log(pageNum);
      this.pageNum = pageNum;
      this.load();
    },
    //上传文件
    handleFileUploadSuccess(res) {
      console.log(res);
      this.$message.success("上传成功")
      this.load();
    },

    // 下载
    download(url) {
      window.open(url);
    },

    // 预览
    preview(url) {
      console.log('url',url)
      window.open('https://file.keking.cn/onlinePreview?url=' + encodeURIComponent(window.btoa((url))))
    },
  },
};
</script>

<style scoped>
.headerBg {
  background-color: #eee !important;
}
</style>